Heater core
DON'T BOTHER. I have the same problem in my 89 D21 and I tried to get the core out of another D21 in the paddock. I think the heater core is the first thing they put in the cab when they make them. Everything between the firewall and the steering wheel has to be removed. Then try...
On my second D21 as my son tarnished the first one. I go hunting 3 or 4 times a year on sheep stations west of Warwick QLD. So the 4x4 is handy but it has a few dents from bush bashing and roo's. :rofl2: